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Finding the Fourth Proportional to 13,802.91, 20,703.90 and 4,443.46

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Solution

The fourth proportional to 13,802.91, 20,703.90 and 4,443.46 is: 6,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.91 : 20,703.90 = 4,443.46 : x
  2. Step 2: Convert to fraction form
    13,802.91/20,703.90 = 4,443.46/x
  3. Step 3: Cross multiply
    13,802.91x = 20,703.90 × 4,443.46
  4. Step 4: Simplify right side
    13,802.91x = 91,996,916.40
  5. Step 5: Solve for x
    x = 91,996,916.40/13,802.91
  6. Step 6: Final answer
    x = 6,665.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.